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Search found 2012 results on 81 pages for 'impossible'.

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• how to generate large image in compact framework

  - by Buthrakaur

  I need to generate large images (A4 image at 200 DPI, PNG format would be fine) in my compact framework application. This is impossible to do in standard way due to memory limitations (such big image will throw OOMException). Is there any library which offers file-backed stream image generation? Or I could generate many smaller stripes of images (each stripe representing a row of the large image) using standard Bitmap approach, but I need to merge them together afterwards - is there any method how to merge many smaller images into one large without having to instantiate large Bitmap instance (which would again cause OOM)?

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• Is this a possible way to get Drupal AD SSO?

  - by JollyRogers

  I'm currently building a Drupal website in an Active Directory environment. One of the site's requirements is Single Sign On, which to date seems to be impossible because there is no Kerberos SPNEGO/GSSAPI auth module for drupal. I've come up with an idea on how SSO could be attempted on IIS. Since IIS has the option to require Kerberos authentication, we can let IIS handle authentication and use the AUTH_USER server variable to pass the authorized user name to the an 'improved' LDAP_auth module. The LDAP_auth module would then check the user name (but not password since it doesn't know or need to know the password) against LDAP to get the user's roles. (AD groups) Does anyone know if this is possible? If so, does anyone have any ideas on how to implement this?

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• Modifying a .swf file

  - by user3015196

  I am really stuck with modifying a .swf file. I just downloaded a SWF file somewhere and I want to remove all objects and animations - everything except the logo ripple effect. How can I do that? Or is it impossible? I didn't work with Flash before and this is my first time. Can you help me with that? If not, could I just get some hints or a demo on how I can do that? Here is a link to a demo. I just want the logo animation and nothing else.

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• problem in `delete-directory` with enabled `delete-by-removing-to-trash`

  - by Andreo

  There is a strange behavior of delete-directory function with enabled flag delete-by-removing-to-trash. It deletes files one by one instead of applying move-file-to-trash to the directory. As a result emacs deletes big directories slowly and there are many files in the trash after deleting, so it is impossible to restore the directory. Example: Directory structure: ddd/ ccc/ 1.txt There are three files in the trash after deleting ddd: trash/ ddd/ ccc/ 1.txt instead of one: trash/ ddd/ It is very slow, because emacs traverse directory recursively. I can't restore deleted directory. What i need is exactly the same behavior as of move-file-to-trash. But it should be transparent (i.e. 'D x' in dired mode). How to solve the problem? As a temporary solution i see the making advice function for `delete-directory'.

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• Threading Problems in ActionScript 2.0?

  - by yar

  Is it possible to have concurrency problems (thread competition) in an onEnterFrame method in ActionScript 2.0? I have written this cheesy code as a guard: if (!busy) { // I suspect some threading problems: is that even possible in flash busy = true; movePanels(); busy = false; } but this is no assurance against thread competition. If so, how can I do a basic semaphore/lock? Note: I suspect threading problems in my app, but if they're impossible, I'll check my code differently.

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• How to add "loading" screen for UIWebView app each time new page is being loaded?

  - by AragornSG

  I have an app that works with tabs and webview. I already have it setup to refresh the page assigned to a tab each time the item on tabbar is selected. My problem now is that it takes some time to load the page and it's impossible to say if the page being displayed is the old or refreshed one. What I want to do is add a "loading" screen (a simple image) which will be displayed until the refreshed page is loaded. Here is the function I run on each tab tap: - (void) goToPage:(NSString *)sid { NSString *newURL = [NSString stringWithFormat:@"%@/mykingdom.php?sid=%@", appURL, sid]; [secondView loadRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:newURL]]]; } Thanks!

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• Limit to 10 number of annotations in mapkit!

  - by teddafan

  Hi, I have all my annotations(as nsdictionnaries) in an array , and the users add them one by one by tapping on an icon. I want to make it impossible after adding 10 annotations (there is 110). Is it here i have to make something?: -(IBAction) plusButtonTapped: (id) sender { NSDictionary *poiDict = [poiArray objectAtIndex:nextPoiIndex++]; CLLocationCoordinate2D poiCoordinate; poiCoordinate.latitude = [[poiDict valueForKey:@"workingCoordinate.latitude"] doubleValue]; poiCoordinate.longitude = [[poiDict valueForKey:@"workingCoordinate.longitude"] doubleValue]; MyMapAnnotation *poiAnnotation = [[MyMapAnnotation alloc] initWithCoordinate:poiCoordinate title:[poiDict valueForKey:@"Subtitle"] color:MKPinAnnotationColorRed ]; [mapView addAnnotation:poiAnnotation]; [self adjustMapZoom]; } Thank you for your help in advance, teddafan

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• Mutually exclusive regular expressions

  - by CaptnCraig

  If I have a list of regular expressions, is there an easy way to determine that no two of them will both return a match for the same string? That is, the list is valid if and only if for all strings a maximum of one item in the list will match the entire string. It seems like this will be very hard (maybe impossible?) to prove definitively, but I can't seem to find any work on the subject. The reason I ask is that I am working on a tokenizer that accepts regexes, and I would like to ensure only one token at a time can match the head of the input.

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• What's the easiest way to implement background downloading in Wicket?

  - by David Moles

  I've got a simple Wicket form that lets users select some data and then download a ZIP file (generated on the fly) containing what they asked for. Currently the form button's onSubmit() method looks something like this: public void onSubmit() { IResourceStream stream = /* assemble the data they asked for ... */ ; ResourceStreamRequestTarget target = new ResourceStreamRequestTarget(stream); target.setFileName("download.zip"); RequestCycle.get().setRequestTarget(target); } This works, but of course the request stops there and it's impossible to display any other feedback to the user. What I'd like to have is something like the typical "Your requested download [NAME] should begin automatically. If not, click this link." Ideally, still displaying the same page, so the user can immediately select some different data and download that as well. I imagine it's possible to do this using Wicket's Ajax classes, but I've managed to avoid having to use them so far, and it's not immediately obvious to me how. What's my quickest way out, here?

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• Input-type-file path, where is it stored on AJAX request ?!?

  - by Sheavi

  Hi, I have been monitoring the parameters a website receives when a file is uploaded (via an input type="file"). Surprisingly, the parameter and its value were looking like this : parameter: upfile value: filename="this is the name of the uploaded file.png" Content-type: image/x-png Now in this POST request to the server page, the file name and its type is passed into a parameter, but what about the path to that filename? Where is that path stored so that the server page can upload the file at the good location? Also, I would like to know if it would be possible by any way to specify a path, NOT to the input type="file" since its impossible, but to the server (though this question probably depends a lot on how the server-side page is scripted). Thank you for your answers.

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• UITextField placeholder looks strange when UITableViewCellSelectionStyleGray

  - by mongeta

  Hello, I've set the background color of my UITableViewCells to Gray. But if there's a UITextField in the cell, the placeholder doesn't change their color to white/black and it's almost impossible to read it, and look stranges. The UILabel from the cell changes their color when it's selected or not, but the placeholder remains always the same. There's a simple solution ? I don't want to add some UILabel and use it as a placeholder, etc. etc. Thanks, r.

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• Does Python Django support custom SQL and denormalized databases with no Foreign Key relationships?

  - by Jay

  I've just started learning Python Django and have a lot of experience building high traffic websites using PHP and MySQL. What worries me so far is Python's overly optimistic approach that you will never need to write custom SQL and that it automatically creates all these Foreign Key relationships in your database. The one thing I've learned in the last few years of building Chess.com is that its impossible to NOT write custom SQL when you're dealing with something like MySQL that frequently needs to be told what indexes it should use (or avoid), and that Foreign Keys are a death sentence. Percona's strongest recommendation was for us to remove all FKs for optimal performance. Is there a way in Django to do this in the models file? create relationships without creating actual DB FKs? Or is there a way to start at the database level, design/create my database, and then have Django reverse engineer the models file?

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• Using a class with const data members in a vector

  - by Max

  Given a class like this: class Foo { const int a; }; Is it possible to put that class in a vector? When I try, my compiler tells me it can't use the default assignment operator. I try to write my own, but googling around tells me that it's impossible to write an assignment operator for a class with const data members. One post I found said that "if you made [the data member] const that means you don't want assignment to happen in the first place." This makes sense. I've written a class with const data members, and I never intended on using assignment on it, but apparently I need assignment to put it in a vector. Is there a way around this that still preserves const-correctness?

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• Symfony: Pre filtering submitted values before/after validation

  - by Rob

  Hi All I've been scouring the net and i have found nothing! I am using symfonys form framework to build a simple 'Create' form. Validation is fine. However i'd like to pre-filter my submitted values, so adding ucfirst, strtoupper, and the like. I'm not sure if im missing something crucial here, but the way i see it is the only way to do this would be to create my own custom validators and utilizing the doClean method, which seems daft since i'd have hundreds of validators for each php function! Hope you guys can help, i've been crawling through source code, api's, numerous books and blogs and i haven't found a thing :( Either it's impossible, or it's really easy, i hope its the latter!

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• Mysql Master Slave Replication on Large Database table (how to sync initial data)

  - by Brian Lovett

  We have a production server and a dev server. We have found that backups are nearly impossible on the production server because of the query volume we experience. So, we're looking at setting up replication with our dev server being the slave. This is ideal because we can afford to lock the tables on that server and additionally it will be nice to have up to date data for the developers. Now, the issues. The production server can't really be taken down or locked at this point, at least not easily. We have a high query volume and fairly large 30+ GB innodb tables. Both servers are running all innodb and are also both on mysql 5.1. What can we do to sync the data initially to get replication started? I've tried a few options, but so far, none have worked.

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• Using code from this site

  - by user553798

  Hi, The legal section of this site mentions that all code by the contributors is licensed under the Creative Commons Attribution Share Alike License. Does this mean that I have to attribute the submitter even if the code in question is a few lines amongst hundreds or thousands of lines of code? What if I use code from a book or SDK? For eg; If I use the sample code from Google's Android SDK documentation, does that mean I need to attribute Google every time I write an app, after all it would be impossible to write an app without consulting the SDK docs, atleast initially... I am totally confused :S

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• How to modify the Title Bar text for SQL Server Management Studio?

  - by DaveDev

  Sometimes I keep multiple instances of SQL Server Management Studio 2005 open. I might have the dev database open in one, and the production database open in another. These appear in the Windows task bar with the text "Microsoft SQL Serve...", which means it's impossible to differentiate between them unless I open the window and scroll the Object Explorer up to see what server the window is actually connected to. Is ther any way that I can get the window to display the server name first, and then the name of the application? Like "Dev-DB.database_name - Microsoft SQL Serve..." or whatever?

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• What object called a method in Obj-C

  - by Loz

  Hi, I am looking to write a plugin controller in Cocoa that loads bundles, and exposes a specific set of methods for the plugins to call. My question is this: is it possible to know (any) info about the object that called a method in the controller. When an instantiated plugin calls a method in my plugin controller, I would like to know which of the plugin instances called the method, without having to rely on the plugin sending a pointer to itself as a parameter (I could always validate the pointer they send, but I want to keep the API methods as simple as possible). There may be no perfect solution (and there are simple workarounds), but it's always good to learn some new tricks if possible (or the reasons why it's impossible). Thanks in advance.

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• ant support for dynamic target

  - by Li He

  I previous saw some similar questions on stackoverflow but didn't see any solution. I guess the answer could be impossible and I am trying to see who can provide me this confirmation. AFAIK, an ant project contains several targets and each target may have several tasks. There is an task MacroDef that defines a sequential of `things' (tasks I suppose?). I tried to put target inside this block but ant complains the name of the target is missing (I am using the attribute of the macrodef to generate the name of the target). So it could be a dead end. Then I found that by using a task `script', we have access to the Project and can even call addTarget/AddOrReplaceTarget from there. But it seems that the targets I create there have no impact on the running targets. Does that mean ant doesn't support manipulating dependencies at target runtime? Is there any way to generate these targets before ant start building the dependency graph?

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• Regular Expressions - Match all alphanumeric characters except individual numbers

  - by imaginonic

  I would like to create a RegEx to match only english alphanumeric characters but ignore (or discard) isolated numbers in Ruby (and if possible in JS too). Examples: 1) I would like the following to be matched: 4chan 9gag test91323432 asf5asdfaf35edfdfad afafaffe But not: 92342424 343424 34432 and so on.. The above is exactly what I would want. 2) However, I would be really thankful if someone could also include French letters like: é ë ê (These are just few examples of many) 1) is my priority, it's totally okay if 2) is impossible or difficult to implement. Sorry, my regex skills aren't that great (hence this question!) Thank you.

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• Referencing surrogate key

  - by Arman

  I have a table that has an autoincrement surrogate key. I want to use it as a foreign key of my other table. The thing is, I cant figure out how I can reference it to that table, because it is nearly impossible to determine what I have to reference(the actual value of the surrogate key). Please be noted that what I am trying to do is adding a tuple/record through my program(outside the dbms). The process is: Add a new record in Table1 and generate an autoincrement key. Update Add a new record in Table2 and reference its foreign key to the primary key of Table1. Update My question is : HOW do I store the foreign key if I didnt know what is it?

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• How to handle expired items?

  - by Mark

  My site allows users to post things on the site with an expiry date. Once the item has expired, it will no longer be displayed in the listings. Posts can also be closed, canceled, or completed. I think it would be be nicest just to be able to check for one attribute or status ("is active") rather than having to check for [is not expired, is not completed, is not closed, is not canceled]. Handling the rest of those is easy because I can just have one "status" field which is essentially an enum, but AFAIK, it's impossible to set the status to "expired" as soon as that time occurs. How do people typically handle this?

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• cannot set a variable to base on user input post method

  - by user1318960

  Hello i´m trying to set info from a post method into a variable that sets a session named name the value that the user input. I get the following error: Notice: Undefined index: name in F:\xampp\htdocs\Impossible game\index.php on line 18 This is line 18: $session = $_POST['name']; <form action="ms1.php" method="POST"> Name <input type="text" name="name"> <input type="Submit" value="Begin"> </form> <?php $session = $_POST['name']; session_start(); $_SESSION['name'] = $session;

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• Can you pass parameters for OnAction in MS Project VBA?

  - by Anne Schuessler

  The way I can define a method to be executed with OnAction in VBA with Microsoft Project is as follows (and works correctly): .OnAction = "Macro ""DoSomething""" ... where DoSomething is the method to execute. I would like to pass a parameter to that method but can't find a way to pass it with this syntax. Does anybody have an idea how to do this? I'm getting the feeling that this is an impossible task, but maybe there's some VBA secret I'm not aware of. Please note that VBA in MS Project seems to have its quirks and is slightly different than VBA for Excel or Access. This seems to be the case for the OnAction property which needs the extra Macro keyword to work correctly. If I'm wrong here please enlighten me.

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• When implementing the ICallbackEventHandler in asp.net, in my c# function the RegularExpressionValid

  - by Mausimo

  Hello, As the question states, i have implemented my first ICallbackEventHandler. In my c# callback function i use: Page.Validate("ENewsLetter2"); if (Page.IsValid) { if (!RegularExpressionValidatorEmail.IsValid) { sInvalidMessage += "Invalid E-Mail address.\n"; } return sInvalidMessage; } everytime i check the RegularExpressionValidatorEmail, the value is = "". I do not know if this is since the iCallbackEventHandler is asynchronous, the validator has not talked to the server yet so the value will always show up blank? Is it impossible to do what i am trying to do by using a iCallbackEventHandler?

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